JPS5563592A - Drive controlling system for induction motor - Google Patents

Drive controlling system for induction motor

Info

Publication number
JPS5563592A
JPS5563592A JP13606478A JP13606478A JPS5563592A JP S5563592 A JPS5563592 A JP S5563592A JP 13606478 A JP13606478 A JP 13606478A JP 13606478 A JP13606478 A JP 13606478A JP S5563592 A JPS5563592 A JP S5563592A
Authority
JP
Japan
Prior art keywords
induction motor
slip
impressed
decreases
accordance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP13606478A
Other languages
Japanese (ja)
Inventor
Shigeki Kawada
Hiroshi Ishida
Yutaka Koiwai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fanuc Corp
Original Assignee
Fanuc Corp
Fujitsu Fanuc Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fanuc Corp, Fujitsu Fanuc Ltd filed Critical Fanuc Corp
Priority to JP13606478A priority Critical patent/JPS5563592A/en
Publication of JPS5563592A publication Critical patent/JPS5563592A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE: To reduce torque ripple at the time of light load and also to enable torque to become generated immediately even at the time when load became heavier, by changing voltage to be impressed on an induction motor in accordance with magnitude of slip.
CONSTITUTION: A defference between a speed command signal put into an input terminal A and a revolving speed signal from a speedometer generator 5 is removed at a summing point, and the difference is amplified by an error amplifier 9. An output from this error amplifier 9 is a slip of an induction motor 4. A signal from a summing point 31 increases as the slip increases, and it decreases as the slip decreases. Power transistors Q1 through Q6, which compose an inverter circuit 3, are controlled by being turned on and off in accordance with this output, so that the voltage to be impressed on the induction motor can be changed.
COPYRIGHT: (C)1980,JPO&Japio
JP13606478A 1978-11-04 1978-11-04 Drive controlling system for induction motor Pending JPS5563592A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13606478A JPS5563592A (en) 1978-11-04 1978-11-04 Drive controlling system for induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13606478A JPS5563592A (en) 1978-11-04 1978-11-04 Drive controlling system for induction motor

Publications (1)

Publication Number Publication Date
JPS5563592A true JPS5563592A (en) 1980-05-13

Family

ID=15166355

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13606478A Pending JPS5563592A (en) 1978-11-04 1978-11-04 Drive controlling system for induction motor

Country Status (1)

Country Link
JP (1) JPS5563592A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6044479A (en) * 1983-08-19 1985-03-09 三菱電機株式会社 Controller for speed of elevator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6044479A (en) * 1983-08-19 1985-03-09 三菱電機株式会社 Controller for speed of elevator

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